Denver Business Phone Systems.

High-Tech Solutions – Old Fashioned Service.

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Business Communication System

NEC Univerge SV9000 Series

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Business Communication Systems

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NEC SL2100 Communication Platform

KCG 40 Year Anniversary

Celebrating 40 Years

Of Dedicated Service

To Our Customers

KCG 40 Year Anniversary


KCG Communications is Denver’s premiere small to medium size business telecommunications service & solutions provider for the entire Colorado Front Range area and beyond.

  • Communications Systems – From basic to today’s most advanced

  • VoIP & Cloud Solutions – Cloud comm for all business needs
  • Management Software – ACD, call accounting & recording, etc.
  • Structured Cabling – Any & all new premiere voice & data lines
  • Real-time backups – Never lose your most important data
  • Access from anywhere – Admin access from any connected location
  • Service & Support – We’re always available for post-install help


KCG Communications offers technology solutions that can grow & adapt with your business as it grows & adapts; Future-proofing your business communications and data systems & making sure your customers, partners and employees can find what they need when they need it, even with the adaptation of new databases or platforms.



Guide to VOIP Systems

What Is a VoIP Phone & How Do They work? If you are thinking, “what is a VoIP phone?” don’t worry, you’re not alone. This is simply the next step in telephone technology. As technology continues to progress in [...]

“KCG Communications helped me get a hosted system in my small travel agency so that I could operate more efficiently. It was the best option for me and it still allows me to have voicemail, greetings for customers calling in and multiple device options – I use a desk phone and smartphone and they both have the same functions. No issues and everything works great! Charla at Cruise Planners – Endless Vacations Travel.”

“We opened our office about five years ago and used KCG (after much searching) to provide our phone system. Not only did they provide the system, install it and train everyone on it, but they also worked with our provider so that we didn’t have to deal with it. We have had no issues. When we recently expanded, it was as painless as can be and quite cost effective. Highly recommend”

“Our building got hit by a lightning strike, and knocked out our our telephone system. KCG came out, worked with our insurance company and was able to get us back in service with a new telephone system the same day. Great people and great service, can’t say enough!!”



Don’t risk your business’s most valuable assets on just any company or system. Make sure to call upon a trusted source like KCG Communications for the help your business needs.

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